Diagnosis
This field cannot be changed for one of the following reasons:

• The shipment status is so advanced that certain changes are no longer
allowed (for example, you cannot change the route once the MRP statushas been set).

• You can only enter input in some fields once another field contains a
certain value (for example, it only makes sense to enter a pricingprocedure in the shipment header if the shipment contains costs).

• Certain fields for the border crossing and load transfer points are not
ready for input at stage level (for example, distance).